These are all of the sectors of a StarCraft map (sc/bw compatible version, at least). They seem to be each 4 characters except a few (possibly so it could be compared to a constant dword value instead of a string, which are slower to compare). If they are less then 4, an 0x20 char (space) is appeneded to the end of this. I assume these values are used as markers for the beginning/ending of a section of the map.
If anyone has information on the undocumented ones then please feel free to contribute.

VER - Always contains the dword 2, and then a following word with the value of 0x003B.
IVER - Same with VER , except the following word is 0x000A.
IVE2 - Same as VER, except the following word is 0x000B.
TILE - One tile takes up one word (16 bits). Therefore, there are 65356 possible tiles for every tileset. The size of this section is: ((sizemap ^ 2) * 2) bytes.
MASK - Seems to be a few hundred bytes of 0xFF.
TRIG - Posted partial format in previous topic
WAV - Stores WAV files, not sure of specific format as of yet.
STR S - Null Terminated table of strings. Any unused string slots are filled with 0x0208 (some kind of filler, the pattern of 08 02's are null terminated as well). Strings start at the bottom of the section and work their way to the top.

http://www.maplantis.org/index.php?pg=wiki;id=35

THANK YOU!!